Double cock



P. MUELLER DOUBLE COCK A ril 7, 1925.

Filed March 8, 1920 3 v1 v2 n to: ffi zZa/Vaeifer WWM zoo Patented Apr.7, 1925;

UNITED STATES MUELLER, on DECATUR, ILLINOIS, ASSIGNOR. 'ro ADOLPHMUELLER, Taverna,

OF DECATUR, ILLINOIS.

DOUBLE COCK.

Application flled March 8, 1920. Serial No. 864,029.

To all whom it may concern:

Be it known that I, PHILIP MUELLER, a citizen of the United States,residing at Decatur, in the county of Macon and State of 6 Illinois,have'invented new and useful Improvements in Double Cocks, of which thefollowing is a specification.

The present invention relates to cocks or faucets and has for one 'ofits objects to pro- 10 vide a cock of improved construction having twodischarge openings and one single valve for controlling the openings.

Other objects of the invention are to provide a, cock of this doubletype which is 15 simple in construction and eflicient in operation; inwhich the connection between the valve stem and the valve head is suchas to insure proper seating of the latter on the valve seats; and toprovide an improved double-headed valve which may be readily removed andinserted without taking down the valve casing or fixture.

In the present disclosure I have illustrated my improved cock asembodied in a sink 25 fixture, but it is to be understood that thepresent disclosure is merely illustrative and not restrictive of theinvention, as the cock is readily adaptable to uses other than theparticular use herein disclosed.

so In the drawings:

Figure 1 is a view in perspective of the fixture in which my improvedcock is incorporated.

Figure 2 is a sectional view taken verti- 35 cally through my improvedcenter cock, and

Fi re 3 is an enlarged sectional view through the valve and theconnection between the valve and its stem.

Referring to the drawings by numerals,

4 like numerals indicating like parts in the several views, 10designates faucets of any suitable construction, which are located atany suitable distance from each other upon a supporting'surface, such asa wall behind 4 the sink, or a basin slab. One of these cocks isconnected in the usual manner to a suitable hot water supply and theother to a cold water supply.

Extending from the faucets are supply 50 pipes 11 whlch deliver tothevalve chamber 12 of my improved cook 13. The cook 13 has extending fromthe valve chamber 12 a downwardly projecting removable spout or nozzle14 having at its upper end a conical valve seat 15. The neckportion ofthe cock is somewhat enlarged, as at 16, and intcrnally recessed so asto provide an annular chamber 17 about the operating stem of the valve.The chamber 12 is divided off from the'chamber 17 by a partition 18having a centrally disposed opening, the wall of which opening isinclined or tapered to provide a conical valve seat 19.

The chamber 17 has a discharge opening which receives a nipple 20 towhich is connected a rubber tube 21 leading to a spray head 22.

The flow of water through the valve seats 15 and 19 is controlled bymeans of the double-headed valve 23 carried by a pushrod 24 which passesthrough a suitable stufling box 25 in the upper end of the neck portionof the cock body, the stufiing box being enclosed, as is usual, by a capnut 26. Upon the outer end of the push rod 24 is an o crating knob 27which is preferably threa ed upon the outer end of the stem so that itmay be readily removed in disassembling the cock parts.

In order that the knob 27 may be readily removed from or affixed to thestem 24, it is necessary that the stem be provided with means to preventits rotation while the knob is being manipulated. Various devices may beemployed, but as one convenient means, have shown the stem 24 asprovided with an aperture 24* which is designed to receive a pin or toolof any suitable type so that the stem 24 may be held against rotationand the knob 27 given a movement of rotation relative to the stem, toeffect its removal.

That such construction is desirable is obvious, for the knob and stembeing the only parts accessible and the valve on the stem beingrotatable, the knob could not be readily removed unless means forholding the stem against rotation is provided.

The valve head 23 comprises an elastic body having its opposite endsbevelled to provide conlcal seating surfaces. The head has a centralthrough opening which receives a pin or rod 28 having a fixed collar 29adjacent its upper end, forming an abutment against which the valve headis maintained by means of a nut 30 threaded 'upon the lower free end ofthe rod 28, a washer 31 being preferably inserted between the valve andthe nut 30.

The conical surfaces of the valve 22 are so disposed as that they cometo their seats with a wedging action, so that the valve will, when oncebrought to closed position, retain that position; the frictionalengagement of the stem 24 with its packing 25 tending also to maintainthe valve 22 in closed position. 0

lit is to be noted that the seating surfaces of the valve head23 taperto correspond with the conical valve seats 15 and 19. To insure pro erseating of the valve the valve head, pro erably, is connected to t evalve stem by means of a swivel, so that, should the valve stem beslightly out oi alignment with the valve seats, the head may be properlyseated, as would not be true in the event that the head was rigidlycarried by the stem. The rod 28, at its upper end, terminates in acircular head 32, the upper and lower edges of which are bevelled. Thishead is received in a recess or cavity in the lower end of the push-rod24, which cavity is of substantially the same configuration in crosssection as the head, said cavity being slightly larger than the head.This gives a rotatable and rocking connection, which is substantially auniversal joint, and provides sufi'icient clearance to allow movement ofthe head within the cavity so as to insure free play of the valve forseating and permit it to hang always vertically from the stem.

It will be noted that the valve head 23 controls the flow of Waterthrough the spout or nozzle 14 and the discharge nipple 20. The faucets10 are operated in the usual way to admit hot and cold water, in thedesired proportions, to the valve chamber 12. When the push rod 24 ispulled upwardly it closes the valve seat 19, thus preventing a flowthrough the spra device and allowing a discharge through t e spout 14.When the rod 24 is pushed downwardly, the opening through the valve seat15 is closed and the water passes through the seat 19, nipple 20 andtube 21 to the spray head 22.

It will be clear that, if desired, the valve 23 may be adjusted to amid-position between the upper and lower seats and the water permittedto flow through both upper and lower ports.

The valve head 15, due to its swivel connection with the stem 24, mayalways be properly brought into engagement with either of its seats 15and 19. By making the head 23 circular in form, beveling its edges, andhaving the cavity correspond in cross sectional configuration to thehead, the valve cannot be angularly displaced relative to the valveseats 15 and 19.

Preferably, the spout 14 is removably connected to the cock body bymeans of screw threads and the screw threaded opening in the body whichreceives the spout,

15 of greater diameter than the ball valve to permit removal of the headfrom the cock. To remove the head, the spout 14 is screwed fromposition, the knob 27 is removed from the push rod and the latter isforced downwardly through the packing gland 25. With the constructiondescribed it will be seen that by merely removing the spout 14 and theknob 27, the valve, its operating stem, and the stem-packing, may berenewed or repaired without disturbing the fixture.

It is, of course, understood that my invention is susceptible of variousmo'ifications and changes which would be within the spirit of theinvention without' departing from the scope of the following claims.

I claim:

' 1. A cock comprising a body portion having a valve chamber providedwith two cone seated outlets having seating slmfaces of relatively largearea, a valve stem mounted for reciprocal movement in said cock body, adouble-coned valve having a rocking and rotatable connection with saidstem, the

coned surfaces of said valve being adapted to engage wedgingly theopposed cone-seated outlets over substantially their entire area Iso asto alternately close either of said outets.

2. A cock comprising a body portion hav-- ing a valve cham er providedwith two coneseated outlets, a valve stem mounted for reciprocalmovement in said cock body, a double-coned valve having a connectionwith said stem, the cone surfaces of said valve being adapted to engagethe opposed coneseated outlets over substantially their entire areas soas to alternately close either of said outlets, said valve being shapedto fit in said seats with a wedging action.

3. A cock comprising a body portion having a valve chamber provided withtwo coneseated outlets, a lunger valve stem mounted for reciproca lbody, a double-coned valve having a connection with said stem, the conesurfaces of said valve being adapted to engage the opposed cone-seatedoutlets over substantially their entire areas so as to alternately closeeither of said outlets, said valve being of elastic material and shapedto fit in said seats with a wedging action.

4;. A cock comprising a bodyportion having a valve chamber provided withtwo coneseated outlets, a plunger valve stem mounted for reciprocalmovement in said cock body, a double-coned valve having a rocking androtatable connection with said stem, the cone surfaces of said valvebeing adapted to engage the opposed cone-seated outlets oversubstantially their entire areas so as to alternately close either ofsaid outlets,

said valve being shaped to fit in said seats with a wedging action. 5. Acock comprising a body portion havmg a valve chamber provided with twoconemovement in said cock' seated'ontlets, a plunger valve stem mounttoalternately closeeither of said outlets, ed for reciprocal movement insaid cock said valve being of elastic material and body, a double-conedvalve having a rockshaped to fit in said seats with a wedging ac 10 ingand rotatable connection with said stem, tion.

5 the cone surfaces of said valve being adapted In testimony whereof Ihave hereunto, Set

to engage the opposed cone-seated outlets my hand. over substantiallytheir entire areas so as PHILIP MUELLER.

